Mk3 Astra Electrical Probs

Hi All,

97 Vaux Astra 1.6i CDX - Having little auto-electical knowledge of my own I
hoped someone could shed some light........

On my way home one day I was using a cig-lighter mobile phone charger which
(I now believe was faulty and has caused this problem) shorted my cigarette
lighter socket, causing it not to work at all and the engine warning light
to come on. The AA informed that the code from the ECU was "Air con relay
voltage too high" (but said he was unable to clear the fault as he was using
the method of shorting pins to read off the code and told me to toddle along
to my local dealer ASAP as the light was still on).

My local vaux dealer (Bridlington in East Yorkshire) informed me that the
code was "Air con relay voltage too Low", left me £30 lighter and that
sorting the fault would cost at least an hours labour: £40+. After
systematically checking each fuse in turn I found fuse 20 (20 amp) was
blown, which I replaced and this got rid of the engine warning light (phew).

The only problem is I seem to have lost a foglight and my air-con (still)
has no signs of life.

Could these be related? Is there anything I can check though my self?

The haynes manual makes no mention of an Air-Con relay so I guess someone is
in the wrong?

Any thoughts appreciated.

Dan.

 

I would guess that the faulty phone charger took out the 20A fuse that
is shared with the air-con system.
There may be other fuses gone. I think that the fog light might be
coincidence (check bulb and fuse).
Was the air-con working before the phone charger eposode?
Dave

 

No; the air-conditioning wasn't working before this little episode, although
the AA man said it was "related to the air-con unit...". The foglight is my
next task, although I know that checking the bulb is an episode itself
anyone any ideas what fuse its covered by (the haynes manual - again no
help).

Dan.

 

As regards the fog light fuse I think you'll find it marked on the fuse
box cover. More likley to be the bulb - it's a right t*t to get at IIRC.

Dave

 

Cheers for the help.

Regards, Dan.